Wednesday, January 18, 2017

blocking all versions of SMB at the network boundary by blocking TCP port 445 with related protocols on UDP ports 137-138 and TCP port 139, for all boundary devices.

US-CERT cautions users and administrators that disabling or blocking SMB may create problems by obstructing access to shared files, data, or devices. The benefits of mitigation should be weighed against potential disruptions to users. For more information on SMB, please review Microsoft Security Advisories 2696547 (link is external) and 204279 (link is external)

Tuesday, January 3, 2017

Just say you wants a local Directory Repository to act like a local media. This happens when you wish to do yum local install from a directory of RPMs only instead of pulling directly from Internet repository.